Fundamentals of Electronic Devices and Circuits

Dr. Geetam Singh Tomar, holds UG, PG, and Ph.D. degrees in Electronics Engineering from Institute of Engineering Calcutta, MNREC Allahabad and RGPV Bhopal respectively and a PDF from the University of Kent, UK. He is the Director of THDC Hydropower engineering and Technology, Tehri Garhwal, India. Has served at the Department of Electrical Computer Engineering, University of West Indies, Trinidad and Tobago, and the University of Kent, Canterbury, UK, MITS, SRCEM and IIITM Gwalior. His research areas include air-interface and advanced communication networks, sensors and sensor networks, and digital design. He is actively involved in IEEE activities and has organized more than 30 IEEE international conferences in India and other countries. He has delivered keynote at various international conferences.  He is associated with professional societies like IEEE, and is a senior member of the IEEE, and Fellow IETE and IE (I). He is a Visiting Professor at Hannam University, Korea; and several other reputed institutes. He is the chief editor of 5 international journals and has published more than 190 research papers in international journals/conferences and has authored 11 books and 10 book chapters.Dr. Ashish Bagwari holds B.Tech. (with Honors), M.Tech. (Gold Medalist), and Ph.D. degrees in Electronics and Communication Engineering. He is currently Head of the Electronics and Communication Engineering Department, Women’s Institute of Technology (WIT) (Institute of State Government), Dehradun, Constituent College of Uttarakhand Technical University (State Government Technical University), Dehradun, India. He also has more than 9 years' experience in industry, academic, and research. He received the Best WIT Faculty Award in 2013 and 2015 and Best Project Guide Award in 2015. Dr. Bagwari also received the Corps of Electrical and Mechanical Engineers Prize from the Institution of Engineers, India (IEI), in December 2015 and was named in Who’s Who in the World 2016 and 2017. Dr. Bagwari has published more than 95 research papers in various international journals (including ISI/SCI indexed) and IEEE international conferences. His current research interests include wireless communications, sensor networks, 5-G technology, digital communication, and mobile ad hoc networks. He is a Senior Member of IEEE USA, MIR Laboratories India, IETE, ACM, and IAENG. He has also been an editor, an advisor, and a reviewer of several well-known international journals published by IEEE, Taylor & Francis, Springer, Elsevier, IJCCN, ISTP, IJATER, JREEE, JCSR, and JNMS, CICN-2011, 2013, 2015, 2016, 2017, CSNT-2014, 2015, 2016, 2017, ICMWOC-2014, I4CT'2014, and ICEPIT-2014. Dr. Bagwari has organized and been a key speaker at several conferences/workshops. Dr. Bagwari has filed two patents, and has written four books and more than 10 book chapters/articles.

• Crystal Properties and Charge Carriers in Semiconductors and Magnetic Material.- Special Diodes and Linear Wave Shaping.- Transistor Amplifier Frequency Response.- Feed Back.- Oscillators.- Op-Amp Applications, Timer, Voltage Regulator and Converter.- Multistage and Tuned Amplifiers.- Summary.- Numerical Problems.

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